Pump-jack.



0 0 m 2 c 0 d e t n a t a P.

nu om 6 8 5 6 U. N

PumP JACK.

(Application filed. Nov. 17, 1899.)

2 sheets-sheet I.

(No Model.)

TNE NORRIS rzfzas 00.. PNOTO-UTNQ, WASNINGTON. n. c.

Patented Oct. 2, 19:00.. I c. F. ECHELBARGER.

P U M P =J A G K.

(Application filed Nov. 17, 1899.)

2 Sheats$heet 2.

(No Model.)

swivel or treadle hook.

UNITED STATES CHARLES F. EOHELBARGER, OF BANOROFT, IOWA, ASSIGNOR OF ONE-HALF TO SAMUEL MAYNE, OF SAME PLACE.

PUM P- JACK.

s'PEoIrIoATI'oN forming part of Letters Patent No. 658.768, dated October 2, 1900. A li ati fil d November 17, 1899; Serial No. 737,301. (No modeh) T aZZ whom it may concern:

Be it known that I, CHARLES F. EOHELBAR- GER, a citizen of the United States of America, and a resident of Bancroft, Kossuth county, Iowa, have invented certain new and useful Improvements in Pump Jack's, of which the following is a specification.

The object of this invention is to provide improved means for. raising and lowering a pump or well-tube in a Well and'for retaining during the process of coupling or uncoupling sections of the well-tube and piston-rod.

My invention consists in the construction, arrangement, and combination of elements hereinafter set forth, pointed out .in my claims, and illustrated by the accompanying drawings, in which Figure l is a side elevation of the complete device. Fig. 2 is a front elevation of the complete device. Fig. 3 is a horizontal plan section of the device on the indicated line 3 3 of Fig. 1. Fig. 4 is a detail View of the leverswivel. Fig. 5 is a perspective of the complete device. Fig. 6 is a detailplan of the In the construction of the machine as shown the numeral 10 designates a base, preferably made of wood and bifurated at one end to partially embrace a pump or Well-tube.

A metallic chair 11 is mounted on the base 10, and arms 12 13 thereof extend laterally from one end of the chair to the margins of the base at the rearof the bifurcation thereof. A plate 14 is mounted for sliding or rectilinear reciprocation in the chair 11 and is preferably made with a rib or strengtheningweb15 longitudinally of the center thereof. One end of the sliding plate 14; is of greater thickness than the body thereof, and a socket is formed therein. A fork 16, is swiveledin the socket of the sliding plate 14 and rises therefrom. A bolt is positioned in and transversely 0f the upper end of the fork 16, and a treadle-hook 17 is fulcrumed at its center on said bolt. I The rear portion of the treadlehook 17 is quite thin or flattened and serves sidewise and is of materially-greater thicktreadle-hook may be swung laterally out of the way or may be extended over the notch of the base to engage a pump or well-tube, and the sliding plate 14 may be projected or withdrawn the desired extent to position the hook within reaching distance of the pump. and supporting the pump or sections thereof A stand or yoke 18 is provided and is vertically positioned on and bolted to the base 10, the bolts 19 20, employed to fix the stand to the base, also traversing the extremities of the arms of the chair. Braces 21 22 are provided and connected at their lower ends to the base and at their upper ends to the central portions of the legs of the stand or yoke, thus rigidly bracing the yoke or stand to the base. A vertical socket is formed in the center of the head of the stand or yoke,

and a fork 23 is swiveled therein and rises therefrom. A bolt 24 ismounted horizontally on the upper portions of the arms of the fork '23, and a lever 25 is fulcrumed on said bolt. I The long arm of the lever 25 is formed as a handle for manual actuation, and the short arm of said lever is bifurcated to receive one end of a link 26, which link is pivoted to the lever by a removable and replaceable pin 27. The free end of the link 26 is bifurcated to receive one end of a liftinghook 28, which hook is pivoted to the link by a bolt 29. The lever may be oscillated vertically with the hook in the vertical plane of mounted with its ends embracingand pivoting on the upper portionof the pipe 31 the upper end of the bracket resting on the upperend of the collar 32.

The middle of the bracket is formed as an eye at a distance laterally of the pipe, and a bolt 35 is mounted therein horizontally. A link 36 is formed with a bifurcated upper end to embrace the eye and be pivoted 0n the bolt 35, and the lower end of the link is bifurcated and of such size as to receive one end of a hook 37, which hook is pivoted therein by a bolt 38.

The bracket 34 may be swung laterally to remove the hook, link, and eye out of the way of manipulation of the pump or well-tube.

A pipe 39 is coupled to and rises from the upper end of the pipe 31, and a ring 40 is mounted on the upper portion of said pipe 39 and secured thereto by a set-screw 41. The ring 40 projects from the pipe 39 into the vertical plane of the pump or well-tube and is of such size as to receive and retain the upper end portions of the well-tube or pumpsect-ions and hold them upright. The upper end portion of the pipe 39 or the ring 40 may be steadied by guy-ropes 42, leading in various directions therefrom and secured in any desired and well-known manner.

Each of the hooks is formed in two sections a b, the section a having a tenon or tongue 0 along one edge, and the section I) having a groove on its inner edge to receive the tenon and a slot (Z outwardly from the groove, but of less length than the groove. The section b may be moved longitudinally of the section a and fixed in any desired relation thereto by a set-screw c, traversing the slot at and seated in the tenon and section a. Thus is provision made for increasing or decreasing the capacity of the hooks for convenient and safe use on different-sized pipes or well-tubes. The treadle-hook 17 and lifting-hook 28 are provided with lips or seats g on their extremities and retaining-plates h, pivoted by set-screws to the corners of the sections a and of such length as to traverse the mouths of the hooks and rest in the seats or lips. By means of the retaining-plates the well-tubes are prevented from escaping the hooks by accidental lateral movement.

In the practical use and operation of this machine the base 10 is positioned with the arms of its furcate end embracing the flange or base of the pump. The pin 27 is removed, the link 26 and lifting-hook removed and laid aside, and a chain and hook (not shown) substituted therefor and secured to the furcated end of the lever 25 by said pin. The hook portion of the chain then is wrapped around the pump-stock and secured. The long arm of the lever then is lifted and the chain drops along the pump-stock. The long arm of the lever then is depressed and the chain tightens on the pump-stock and lifts the entire pump about eight inches, thereby raising the flange or base of the pump clear of the pump-platform and above the level of the treadle-hook 17. The treadle-hook then is swung laterally until the hook thereof embraces the well-tube below the flange or base of the pump, and the retaining-plate of said hook is positioned to complete the embrace ment of the tube. The lever then is released and the weight of the pump is borne by the treadle-hook. The chain then is removed from the lever and the pump-stock unscrewed from the well-tube. The link and liftinghook then are replaced on the lever and said hook engaged with the well-tube. The lever then is operated to raise the well-tube by a series ofintermittentmovements, the treadlehook holding the tube during the intermissions of lifting of the lifting-hook. This operation is continued until the upper end of the well-tube enters the ring 4:0 and a coupling in the tube rises above the treadle-hook. Then the upper section of the well-tube is unscrewed and raised a few inches by hand and retained by engagement of the hook 37, depending from the bracket 34, thus supporting the upper (detached) section until the pistonrod may be uncoupled. Then the upper sec tions of tube and piston-rod are lowered by hand and rested on the pump-platform, and the operation of the lever is continued until another uncoupling is to be made, and so on until the entire pump or any desired portion thereof is removed.

In the removal of the pump or well-tube the operations of the hooks 17 28 in releasing and rengaging the pipes are automatic, being governed only by gravity in one direction and the movements of the pipes andlever.

In the operation of replacing the pump or well-tube the hooks are released from the pipes by hand-and-foot actuation and the sections conjunctively lowered by intermittent movements of the lever, the treadle hook holding the entire lowering portion of the pump during the inter-missions of operation of the lever. The weight of the pump or well-tube is carried at all times by some portion of the machine during the operation of raising or lowering, and the detached sections of the pump or tube are retained temporarily by the upper hook while the piston-rod is coupled or uncoupled.

I claim as my invention 1. A pump-jack comprising the bifurcated base, the stand rising therefrom, the lever on the stand, the lifting-hook on the lever, the treadle-hook on the base, the upright pipe and the holding-hook on the pipe, the hooks being normally in the vertical plane of the furcate of the base.

2. The pump-jack comprising the base, the stand rising therefrom, the leveron the stand, the lifting-hook on the lever, the treadle-hook on the base, the upright pipe and the ring on the upright pipe.

3. A pump-jack comprising the base, the chair thereon, the treadle slidably mounted in the chair, the treadle-hook on the slide and swiveled thereto, the yoke-stand fixed to and rising from the base, the lever swiveled to the top of the stand, the lifting-hook pending from the short arm of the lever, the upright pipe on the stand, the bracket swiveled stares to the upright pipe, the holding-hook pending from the bracket, and the ring fixed to the upper end portion of the upright pipe.

4. In a pump-jack, the combination of the base, the chair thereon, the plate slidingly mounted in the chair and the hook swiveled in said sliding plate, and arranged to be moved laterally or rotatably out of the vertical plane of a well-tube.

5. In a pump-jack, the combination of the base, the chair on the base, the plate slidingly mounted in the chair, and the hook mounted for vertical and lateral oscillation on the plate.

6. In a pump-jack, the combination of a bi- 

